fluorine by john rininger
DESCRIPTION
FLUORINE BY JOHN RININGER. Fluorine (F) 18.998 Group 17 Period 2 Atomic Number 9. PICTURE OF ELEMENT. 2D. 2D Picture. The physical properties of the chemical element Fluorine are: Standard State (phase): Gas Specific Heat Capacity: 31.304J/mol·1/K Heat of Fusion: 0.51kJ/mol - PowerPoint PPT PresentationTRANSCRIPT
FLUORINE BY JOHN RININGER
Fluorine(F)
18.998Group 17Period 2
Atomic Number 9
PICTURE OF ELEMENT
2D
2D Picture
The physical properties of the chemical element Fluorine are: •Standard State (phase): Gas •Specific Heat Capacity: 31.304J/mol·1/K •Heat of Fusion: 0.51kJ/mol •Heat of Vaporization: 6.62kJ/mol •Melting Point (K): 53K •Melting Point (°C): -219°C •Melting Point (°F): -363°F •Boiling Point (K): 85K •Boiling Point (°C): -188°C •Boiling Point (°F): -306°F
Physical Properties
Chemical Properties
Read more: http://www.lenntech.com/periodic/elements/f.htm#ixzz2OqxdJxgQ
It react with all elements other than nitrogen, oxygen, and lighter noble gases at room temperature. it belongs to group VII-A (7-A) of the periodic table and its the lightest member of that group. Its melting point is -219.61 Degree centigrade and its boiling point is -188.13 Degree centigrade
Uses
• Some compounds of fluorine (such as sodium fluoride, stannous fluoride and
sodium MFP) are added to toothpastes to prevent dental cavities. These are now regularly added to water as well.
• Most general anesthetics are derived from compounds of fluorine.
• Fluorine-18 emits positrons and has a relatively large half-life. This makes it ideal for use in positron emission topography.
• Anti-reflective coatings contain compounds of fluorine.
• Fluorine can be used for plasma etching, flat panel display and MEMS (microelectromechanical) fabrication.
• HF (hydrofluoric acid) is used to etch glass, usually in light bulbs
Joseph Henri MoissanDiscovered Fluorine in
1886
Important CompoundsThe ones you probably use the most:
Sodium Fluoride (NaF) it's put into drinking water and toothpaste to hep prevent tooth decay.
Polytetrafluoroethylene (-[C2F4]n-) - You probably know it by the trade name Teflon, it's used to prevent food from sticking to pans, amongst other things.
Chlorofluorocarbons (CClxFx) - There's a variety of these, many of them are sold under the name Freon. Historically they have been used in refrigerators and air conditioners,
though recently there is a move to find alternative refrigerants because these can damage the ozone layer.
Interesting Facts
• Fluorine acts violently with almost all elements, organic compounds, inorganic compounds including water.
COOL PICTURES